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hair drug testing, urine drug testing,oral fluid drug testing

Choosing the Best Drug Test Specimen Type

Since the 1980s, urine testing has dominated the drug testing market in the United States.¬† Over the past few years, ¬†alternative specimen types and expanded testing panels of drug testing have become more commonplace and many employers in the United are combining the use of urine, hair, and oral fluid drug testing for more effective […]

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